id:A105672 - OEIS Search Results

Search: id:A105672

Displaying 1-1 of 1 results found.

page 1

a(1)=1 then letting f(n)=3^n for f(n)<k<=f(n+1) a(k)=f(n+1)-a(k-f(n)) (b(n,3) using pari code).

+0
5

1, 2, 1, 8, 7, 8, 1, 2, 1, 26, 25, 26, 19, 20, 19, 26, 25, 26, 1, 2, 1, 8, 7, 8, 1, 2, 1, 80, 79, 80, 73, 74, 73, 80, 79, 80, 55, 56, 55, 62, 61, 62, 55, 56, 55, 80, 79, 80, 73, 74, 73, 80, 79, 80, 1, 2, 1, 8, 7, 8, 1, 2, 1, 26, 25, 26, 19, 20, 19, 26, 25, 26, 1, 2, 1, 8, 7, 8, 1, 2, 1 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n+1)=1+sum(k=1, n, (-1)^k(2-33^valuation(k, 3)))`
	PROGRAM	`(PARI) b(n, m)=if(n<2, 1, m*m^floor(log(n-1)/log(m))-b(n-m^floor(log(n-1)/log(m)), m))`
	CROSSREFS	`Cf. A105669, A105670, A093347, A093348.` `Adjacent sequences: A105669 A105670 A105671 this_sequence A105673 A105674 A105675` `Sequence in context: A049250 A060587 A081800 this_sequence A005489 A015152 A021461`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 03 2005`

page 1

Search completed in 0.002 seconds

Last modified November 8 07:45 EST 2009. Contains 166143 sequences.

AT&T Labs Research